Improvement in apparatus for the manufacture of starch



T. KINGSFURD.

Apparatus for the Manufacture of Starch.

Patented June 24. 8 73.

m \||l. H a o o o o 1 OO O I O I O o I O Q It! I 1]! w y g IIiIIHIHHW NH HI I IOI I I -I llllllillllll UNITED STATES PATENT OFFICE.

THOMSON KINGS-FORD, or OSWEGO, NEW YORK.

IMPROVEMENT IN APPARATUS FOR THE MANUFACTURE OF STARCi-L.

Specification forming part of Letters Patent No. 140,] ll, dated J due 24, 1873; application filed- June 9, 1873.

To all whom it may concern:

Be it knownthat I, THOMSON Kmesroan. of the city and county of Oswego, State of New York, have invented an glnprovemeut in the Apparatus used in the anufacture of Starch; and I do hereby declare the following. to be a full and correct description of thesame, reference being had to the accompanying drawings, in which-- Figure 1 is a plan or top view of the apparatus. Fig. 2 is a front elevation. Fig. 3 is a side view of the same.

. Similar letters of reference indicate corresponding parts in the several figures.

A is a tank or cistern to hold the liquor to be operated upon. This tank may be round, square, or any other form desired. B B- are round plugs fitted into corresponding holes in the side of the tank. G 0 are also plugs, which are used to draw ofit' the impure water when the starch and fiber have settled to-the bottom of the tank. E is a spout for convey. ing the starch-liquor from the tank when plugs B B are taken out, ashereinafter described.

The nature of my invention consists of an improved apparatus which I use for the pun pose of separating the starch from the fibrous matter and other impurities with which it is combined, after undergoing the usual process of maceration in alkaline solution.

I put a portion of the starch-liquor into the tank or cistern A, where it is allowed to remain at rest for a suflicient length of time for the starch and bran or fiber to settle to the bottom of the tank. All the liquor which does not contain starch is then drawn 0% by means of the plugs G .in the sideof the tank. The starch, bran 8m, which remain in the bot-.

tom of the tank are then mixed up thoroughly with abundance of pure water. I allow this liquor then to remain at rest till the matters other than starch begin to subside; and, as the impurities subside morerapidly than thes'tarch, I draw oil the liquor containing the pure starch by means of the plugs B and spout E into a reservoir provided for the purpose of receiving the same. In drawing ofi the starch-liquor, I begin near the top and proceed downward, drawingout one plug after another, keeping a short distance above the subsiding impurities. This process is repeated as often as may be necessary, in order to extract all the starch from the tank, leaving, in the tank only the bran and other impurities. This path of the process of starch-making is known among starch makers as siphoni-ng; and other starch-makers draw the starch-Iiquoii from the cistern or tank by means of a siphon.

By the use of my improved apparatus the operation can be performed much more rapidly and efl'ectually than by the old method.

Having thus fully described my-inven'tion, what I claim, and desire to secure by Letters Patent, is-' The combination and arrangement, in a siphoning cistern or tank, of the plugs B and spout E, all constructed and operated in the manner and for the purpose specified.

The above specification of my said invention signed and witnessed at Oswego this 2d day of June, A. D. 1873.

THOMSON KINGSFORD.

Witnesses:

H. G. MELN0TTE,- GEO. HAYES BURT. 

